package com.example.demo.customer;

import com.example.demo.exception.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class CustomerService {

    private final static Logger LOGGER = LoggerFactory.getLogger(CustomerService.class);
    private final CustomerRepository customerRepository;


@Autowired
    public CustomerService(CustomerRepository customerRepository){
        this.customerRepository = customerRepository;
    }

    List<Customer> getCustomers(){
    LOGGER.info("getCustomer called");
    return customerRepository.findAll();
    }

    Customer getCustomer(Long id){
        return  customerRepository
                .findById(id)
                .orElseThrow(() -> {
                    NotFoundException notFoundException = new NotFoundException("customer" + id+"无法找到");
                    LOGGER.error("error:getCustomer {} :"+id,notFoundException);
                    return notFoundException;
                });
    }
}
